Eptatretus cryptus Roberts & Stewart, 2015
Cryptic hagfish
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| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Eptatretus cryptus AquaMaps Data sources: GBIF OBIS |
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drawing shows typical species in Myxinidae.
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drawing shows typical species in Myxinidae.
Classification / Noms Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
Myxines (hagfishes) > Myxiniformes (Hagfishes) > Myxinidae (Hagfishes) > Eptatretinae
Etymology: Eptatretus: hepta (Gr.), seven; tretos (Gr.), perforated (i.e., with holes), referring to seven gill apertures on what would later be described as Homea banksii (=E. cirrhatus) [range within genus is 6-14 pairs of gill apertures] (See ETYFish); cryptus: From kryptos (Gr.), hidden or secret, referring to its similar morphology to E. cirrhatus, with which it has been confused in the past (See ETYFish).
Etymology: Eptatretus: hepta (Gr.), seven; tretos (Gr.), perforated (i.e., with holes), referring to seven gill apertures on what would later be described as Homea banksii (=E. cirrhatus) [range within genus is 6-14 pairs of gill apertures] (See ETYFish); cryptus: From kryptos (Gr.), hidden or secret, referring to its similar morphology to E. cirrhatus, with which it has been confused in the past (See ETYFish).
Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie
marin bathydémersal; profondeur 96 - 922 m (Ref. 115309). Deep-water
Distribution Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri
Western Pacific: New Zealand.
Taille / Poids / Âge
Description synthétique Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 0; Épines anales: 0; Rayons mous anaux: 0. Diagnosis: characterized by the combination of the following characters: 7 pairs of gill pouches, 3/3 multicusps, 12–15 prebranchial slime pores (modally 14), 78–86 total slime pores, slime pores without narrow white rim, preocular length 4.8–5.8% TL, and body colour brown to dark brown; differs from all other congeners except E. caribbeaus, E. menezesi, E. strahani, E. cirrhatus, and E. goliath by having 7 pairs of gill pouches and 3/3 multicusps; Eptatretus caribbeaus, E. menezesi, and E. strahani are not found in New Zealand; differs from E. caribbeaus by the number of anterior unicusps (10–11 versus 11–13), posterior unicusps (8–10 versus 10–11), and body colour (brown to dark brown versus light tan); differs from E. menezesi by the tail slime pores (11–14 versus 14–18), total slime pores (78–86 versus 86–94), and ventral finfold colour (brown versus whitish margin); it differs from E. strahani by having visible (versus absent) eyespots, rounded (versus slit-like) 1st few branchial apertures, vestigial (versus welldeveloped) ventral finfold (0.17–0.64%TL versus 1.12–1.16%TL), rounded (versus angled) ventral caudal fin profile, and shallower tail depth (8.1–10.6%TL versus 10.9–12.7%TL); differentiation from E. cirrhatus by the prebranchial slime pores (12–15, modally 14 versus 15– 18, modally 16), its more robust appearance (body depth 8.9–12.0% TL versus 5.9–11.2% TL, often <8.6% TL), and body colour (brown to dark brown versus dark brown to purple-brown); some, and often most, slime pores of E. cirrhatus have a narrow white rim, whereas slime pores in E. cryptus sp. nov. are the same colour as the rest of the body; care must be taken not to interpret residual slime or internal structure of the slime pore for the presence of a white rim; Eptatretus cryptus differs from E. goliath by the trunk slime pores (46–54 versus 56–60) and total slime pores (78–86 versus 89–95); the following character can also help in dissociating E. cryptus from E. goliath: preocular length (>4.8 versus 3.7–5.2% TL) and prebranchial length (>20.3 versus 18.3–20.9% TL) (Ref. 115309).
Body shape (shape guide): eel-like.
Body shape (shape guide): eel-like.
This species is more commonly found deeper than 500 m. Its biology is largely unknown because it has been misidentified as the common hagfish E. cirrhatus; its stable carbon and nitrogen isotope signature indicated that this species feeds at a high trophic level, 3 levels above primary producers (Ref. 115309).
Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Référence principale
Téléchargez vos références | Références | Coordinateur | Collaborateurs
Zintzen, V., C.D. Roberts, L. Shepherd, A.L. Stewart, C.D. Struther, M.J. Anderson, M. McVeagh, M. Noren and B. Fernholm, 2015. Review and phylogeny of the New Zealand hagfishes (Myxiniformes: Myxinidae), with description of three new species. Zool. J. Linnean Soc. 174:363-393. (Ref. 115309)
CITES
Not Evaluated
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
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Écologie trophique
Aliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Rations alimentaires
Prédateurs
Aliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Rations alimentaires
Prédateurs
Dynamique des populations
Paramètres de croissance
Âges / tailles maximales
Longueur-poids rel.
Rel. longueur-longueur.
Fréquences de longueurs
Conversion de masse
Recrutement
Abondance
Paramètres de croissance
Âges / tailles maximales
Longueur-poids rel.
Rel. longueur-longueur.
Fréquences de longueurs
Conversion de masse
Recrutement
Abondance
Cycle de vie
Reproduction
Maturité
Maturité/épines rel.
Fécondité
Frai
Agrégats de frai
Œufs
Développement de l'œuf
Larves
Dynamique des populations larvaires
Reproduction
Maturité
Maturité/épines rel.
Fécondité
Frai
Agrégats de frai
Œufs
Développement de l'œuf
Larves
Dynamique des populations larvaires
Anatomie
Surface branchiale
Cerveau
Otolithe
Surface branchiale
Cerveau
Otolithe
Physiologie
Composition corporelle
Nutriments
Consommation d'oxygène
Type de natation
Vitesse de nage
Pigments visuels
Son de poisson
Maladies et parasites
Toxicité (CL50)
Composition corporelle
Nutriments
Consommation d'oxygène
Type de natation
Vitesse de nage
Pigments visuels
Son de poisson
Maladies et parasites
Toxicité (CL50)
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génôme
Génétique
Hétérozygotie
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Diversité génétique
génôme
Génétique
Hétérozygotie
Héritabilité
Diversité génétique
Liées à l'homme
Systèmes d'aquaculture
Profils d'aquaculture
Souches
Cas de ciguatera
Timbres, pièces de monnaie, divers
Systèmes d'aquaculture
Profils d'aquaculture
Souches
Cas de ciguatera
Timbres, pièces de monnaie, divers
Outils
E-book | Guide de terrain | Générateur de fréquences de longueur | Outil de dynamique de population | Carte par point |
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Articles particuliers
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Sources Internet
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record
Estimations basées sur des modèles
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Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00204 (0.00095 - 0.00440), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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Niveau trophique (Réf. 69278) |
4.4 ±0.7 se; based on size and trophs of closest relatives |
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Résilience (Réf. 120179) |
Faible, temps minimum de doublement de population : 4,5 à 14 années (Preliminary K or Fecundity.). |
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Vulnérabilité de la pêche (Ref. 59153) |
High vulnerability (59 of 100). 🛈 |